玉米矮花叶病毒 (MDMV)病分布于世界各主要玉米产区 ,近年在我国北方地区发生流行 ,导致玉米和高粱大面积减产 ,造成了严重损失。由于缺少抗病品种 ,目前对该病的防治主要是采取传统的方法。通过对 MDMV的分子生物学及传播机制进行系统研究 ,有可能找到对该病毒有效而持久的控 Maize Dwarf Mosaic Virus (MDMV) is distributed in all major maize producing areas in the world. In recent years, it has prevailed in the northern part of our country, resulting in a large area yield reduction of maize and sorghum, resulting in serious losses. Due to the lack of resistant varieties, the current prevention and treatment of the disease mainly adopts the traditional method. By systematically studying the molecular biology and transmission mechanisms of MDMV, it is possible to find effective and long-lasting control of the virus